package com.aisa.tracker;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

import java.util.Calendar;

public class DbAdapter {

    private DatabaseHelper mDbHelper;
    private SQLiteDatabase mDb;
		private final Context mCtx;

		private static final String DATABASE_NAME = "tracker";
    private static final int DATABASE_VERSION = 2;
    public static final String KEY_ROWID = "_id";
		private static final String DATABASE_TABLE1 = "main";
		private static final String DATABASE_TABLE2 = "sleep";
		
    private static final String DATABASE_CREATE =
        "create table main (_id integer primary key autoincrement, "
        + "timestamp integer default (strftime('%s', 'now')), mood integer, anxiety integer, energy integer, concentration integer);"
				+	"create table sleep (_id integer primary key autoincrement, "
        + "timestamp integer, sleep integer, wake integer, duration integer);";
		
    private static class DatabaseHelper extends SQLiteOpenHelper {

        DatabaseHelper(Context context) {
            super(context, DATABASE_NAME, null, DATABASE_VERSION);
        }

        @Override
        public void onCreate(SQLiteDatabase db) {
            db.execSQL(DATABASE_CREATE);
        }

        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
            Log.w("DbAdapter", "Upgrading database from version " + oldVersion + " to "
                    + newVersion + ", which will destroy all old data");
            db.execSQL("DROP TABLE IF EXISTS main; DROP TABLE IF EXISTS sleep");
            onCreate(db);
        }
				
				@Override
        public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
            Log.w("DbAdapter", "Downgrading database from version " + oldVersion + " to "
                    + newVersion + ", which will destroy all old data");
            db.execSQL("DROP TABLE IF EXISTS main; DROP TABLE IF EXISTS sleep");
            onCreate(db);
        }
    }

    /**
     * Constructor - takes the context to allow the database to be
     * opened/created
     * @param ctx the Context within which to work
     */
    public DbAdapter(Context ctx) {
        this.mCtx = ctx;
    }

    /**
     * Open the notes database. If it cannot be opened, try to create a new
     * instance of the database. If it cannot be created, throw an exception to
     * signal the failure
     * 
     * @return this (self reference, allowing this to be chained in an
     *         initialization call)
     * @throws SQLException if the database could be neither opened or created
     */
    public DbAdapter open() throws SQLException {
        mDbHelper = new DatabaseHelper(mCtx);
        mDb = mDbHelper.getWritableDatabase();
        return this;
    }

    public void close() {
        mDbHelper.close();
    }

    /**
     * Create a new main survey. If it is
     * successfully created return the new rowId for that note, otherwise return
     * a -1 to indicate failure.
     * 
     * @param mood mood rating from -3 to 3
     * @param anxiety anxiety rating from 0 to 4
		 * @param energy energy rating from -3 to 3
		 * @param concentration concentration rating from -2 to 2
     * @return rowId or -1 if failed
     */
    public long createMain(Integer offset, Integer mood, Integer anxiety, Integer energy, Integer concentration) {
				ContentValues initialValues = new ContentValues();
        initialValues.put("mood", mood);
        initialValues.put("anxiety", anxiety);
				initialValues.put("energy", energy);
				initialValues.put("concentration", concentration);
				
        return mDb.insert(DATABASE_TABLE1, null, initialValues);
    }

		public void fakeMains() {
			Log.w("DB", "Making some fake dataz");
			for (int i=1; i<20; i++) {
				createMain(0, 4, 3, 2, -1);
			}
		}
		
    /**
     * Delete the main survey with the given rowId
     * 
     * @param rowId id of note to delete
     * @return true if deleted, false otherwise
     */
    public boolean deleteMain(long rowId) {
        return mDb.delete(DATABASE_TABLE1, KEY_ROWID + "=" + rowId, null) > 0;
    }

    /**
     * Return a Cursor over the list of all notes in the database
     * 
     * @return Cursor over all notes
     */
    public Cursor fetchAllMains() {
        return mDb.query(DATABASE_TABLE1, null, null, null, null, null, null);
    } 

    /**
     * Return a Cursor positioned at the note that matches the given rowId
     * 
     * @param rowId id of note to retrieve
     * @return Cursor positioned to matching note, if found
     * @throws SQLException if note could not be found/retrieved
     
    public Cursor fetchMain(long rowId) throws SQLException {

        Cursor mCursor =

            mDb.query(true, DATABASE_TABLE1, new String[] {KEY_ROWID,
                    KEY_TITLE, KEY_BODY}, KEY_ROWID + "=" + rowId, null,
                    null, null, null, null);
        if (mCursor != null) {
            mCursor.moveToFirst();
        }
        return mCursor;

    } */

    /**
     * Update the note using the details provided. The note to be updated is
     * specified using the rowId, and it is altered to use the title and body
     * values passed in
     * 
     * @param rowId id of note to update
     * @param title value to set note title to
     * @param body value to set note body to
     * @return true if the note was successfully updated, false otherwise
     
    public boolean updateNote(long rowId, String title, String body) {
        ContentValues args = new ContentValues();
        args.put(KEY_TITLE, title);
        args.put(KEY_BODY, body);

        return mDb.update(DATABASE_TABLE, args, KEY_ROWID + "=" + rowId, null) > 0;
    }*/
}